Automatic card stripper



SEIICHI SUZUKI 2,823,423

AUTOMATIC CARD STRIPPER Feb. 18, 1958 '7 Sheets-Sheet 1 Filed May 24,1954 SEIICHI 5Uzur 1 INVENTOR.

BY M J ATTORNEYi Feb. 18, 19 58 SEllCHl SUZUKI AUTOMATIC CARD STRIPPER 7Sheets-Sheet 2 Filed May 24, 1954 SEIICHI 5uz uK1 BY MU ATTORNE Y5 7Sheets-Sheet s Afro/wars Feb. 18, 1958 sEncl-n suzuKl AUTOMATIC CARDSTRIPPER Filed May 24, 1954 lmama Feb. 18,1958 SEllCHI SUZUKI AUTOMATICCARD STRIPPER 7 Sheets-Sheet 4 Filed May 24, 1954 Scncur SUZUKI vINVENTOR. BY h/enllmm ATTOR NE Y5 Feb. 18, 1958 SEllCHl SUZUKI 2,823,423

AUTOMATIC CARD STRIPPER Filed May 24, 1954 w 7 Sheets-Sheet 5 SEIICHISUZUKI INVENTOR ATTORNEYS I I I Feb. 18, 1958 szncl-n suzukl 2,823,423

AUTOMATIC CARD STRIPPER Filed May 24, 1954 '7 sheets-sheet s SEIICHISUZUKI INVENTOR.

SEIICHI SUZUKI AUTOMATIC CARD STRIPPER -Feb. 18, 1958 7 Sheets-Sheet 7Filed May 24, 1954 Lllllllllil 109876543240 SEIICflI Suzuxr h/MM,

United States Patent AUTOMATICCARD STRIBPER rseiichi Suzuki, frakarauwke, Hy n, Japan Application May 24, 1954, Serial No. 4315944 Claimspriority, applicationJapan November-12,1953

t SClairns. 1,-: 19-11 9) The v presentinvemien rel s t st ipp ng apparau lioreard ng machines, .l e prineipal.obiee pi the p esen.inventionis'to pr vide mean olremo e'fi er Was e9- tcumulated on thecarding cylin eruaud enthes efi r- ,other object of thepresent inventin.is to proviglerpegns ..to,prev,ent waste of fiber, by-whieh means. thtfiber was --rem ved from thecarding yl nder m y be ed .hae ..to,thesaid ey in erfor further vca d n a terr due cm.stud .-.disposal oi therubbish.

According to the. present inventiourthe str pping mean 25 vKinneyeonsistofva sue iennozzlehevingians eti nflep ins .telongateslminthe:,cimumfi e tieltdir e iqnuof th ea si n ,eylinder, 0r..dOfi I-. l dfixed totafltr versiug memh t novtable arallel teth r laxesnef the eardt g eylinde amid th drifter. Ihenozzle,meyube rovidedlyvith r a. 1;1t0-3o :maitieelly operable ,for its opening end .,glo ing. The ether featues :th present inv ntion will 1-be tenp renti rqmgthe following de c ipton and e eqmpany- .tin gtdrawinggin whieh:

Figu e 1 i 2 i O i carding maQ ineee QLdw(i1 5; toethe presentinvention;

Figure 2 is a p enewr-par zly br kenlamy, e vaz a td- Tiiugtmaehineesshwn i Eig refigure} isa en vi w .of th sea ing imaehinexet E u-Ie-,lpartlyyinnseetiqn; m

:Ej-gu-re 4,.is an-elevat ennpar y in sectien, of .on .f rr-ofistgippingeud .traversingm ans ;aceondin g.=. ..thepresen invention;

.zF igure S-js. anlendwiew- (of theforrn offeheginventigmas :ShQWQ imFjgre 45 7 1 issa :s etieuel v ew tent-tith dine 7a91ril1 @SQIHQ,

Fi ure? 8 is. :anienl rgedr l v tiennpertlv in-=s etinu,;e etherelutehe-=shownzin Figure rieurea as aniend view of theE -guIePS;

Figure 10 is an elevation of one form of fan meansrae :werding to -;th=p eut-invent qu;

:Eigure 11 .1s etional-side YieWIaOf the EfQrm'EOfithefan .tmeansasshon. 1.nxgure 11.0;

fEignreLtl isjmelevation of another rformtof fan means saee erding :tothe -.pr sen inve i n;

aEi uredl Visa sectional side viewof athe'form-ofthe. fan-means1.a.sishovvnintFigure 1:2; Fi g-nre ;1.4 gisan; enlargedsectional-view ofz-ai-va'lve :acwording to.1thepresentinventiom Eigure;gis-a-nzenlargedxeleyationiof theavalve as shown zirtiFigure 1:4. gurelffiiisa diagram illustrating :the stripping effect -o epresent-inveritionas compared wi-th' thatof known stl ipp'ing means.

In: thedrawings is'showna carding cylinder 12 having -Wire teeth ifion'a 'cartiingmachinel l. In--a-gap 14in "a lower casing 13 around thelowenpart-of cylintier lfi is located a suetien n tzzl elt8 having .asuction Opening 16 2,823,423 Patented Feb. 18, 1958 tele gatedtin.the-ei eumferentiel si eeti u-ef :th s rdins y n e 1 2 -:s hei e ylider the elon ion b ifls su that a east the eedig-e dsefthe fiher r e.these first, passi ith u t n ePen -e -as th eerdin evlinder m- 5 tat s,aret t ippe s re th ,wrdv ugzeylinde b tween-the endspf the elongatednozzle. Preferably theentirelength of t fi e st pped fremth te esl evlider durin it p ssag pa tth eleugated suflieneeeuipg mine-leadiugends beng pu le e he 1 d rbe w en the e ds o 10 ep n slfitandi hei emaind oft seu th e s-t beers fol owing-: ithou -t eh ng;the-entls-ef the-open .11operation, the nozzle 18 is mad totr averseth f the. ard n maehiue ne-Qir et en parallel sQ i QYl HQQ'J-Z- :A leadiser 2H2 isqins rt v 15summed .by-tb ae ets l fiu-a dn n-e eee tinde 112- Qu th s eev 1 a-;e.ar e .mountes hen ich .earr age te t 2. e s. leugagevwi th -le sew-2. ll reugh g-r :sleevetm A vqket2 sn ou e zeuft engege l i25 upertedbetw e .2.6 e :.2 uh. laxis paral e t e heleads rewiisuet qn n zzle18 m ed thereen and 21ereh r dinthe-p e emit- 5140 ee veitep e, eenAOnOfaa re --4 xedt the eu g.

, e niege reache th iende q t vave se W v lhen:the.ie u ofithe red-'41an w n e te i l-rt t s re 2 eeeme e ti t erse rn "Di e-.sha tfe'l t u eeedi te guisl eeve25 ear fiend 54 a e m u te and g a -.5 i enga ed:iutetmedi te gea-r 55.- Au z i m d a e gea sStS; is

ra ke 2 p ven the teete ta dem om rm uemen in aleq tudin ltdiree o twithes ee ete eedte rewtzl- A toothed clutehAS ion the ge rtAS is ,en.ga geableswi thg t t d tch 44 fi e it the a ese wl A teethed .e ut vo a 4 e=-euge eb1 ith-etoethed 50 elutehAS, fixedlto the lead screw 22. When,thegeanAfi a d ea d e a e zfirqmq eadee wz end eeere 5 nd 1 1 .'a en aed .iw th lead 2 ithr uah clutches 4 an h ire z re ,ZZ'J dr ven by. theshaft-.52 soas to rotate in one tdireefiqm andbwhen gears 55 45 e d 51'are dise ag en g er a5 nd- 4 ar tengeged :to the leadv screw throughclutchesAiZe-nd 4:3,,the lead screw rotates in the opposite direction.

When the carriage 21 ,arrivestatiheend.oii-its tgaverse movement asshown in Figure 4, the ta pere d endAo isinserted into the holet 39 tsoas t o.r1 i ft -the pin=3 5 he same time, one of. the arms. 29 ofthe-.svaLye- 29 is p- 'erated bythe push rod v33v sous- ;to Zelose; thevalve.

e r a 21 is opp d by a buf e eriugifib endithe e lead screw 22 isfurther moved by the teeth 23. eM-oyemen 't p ed end 401-10 t ea e (a vewed inf ure 74) causes .the pin 35. 10- rise slowly finogl the regigegl ".screw 22 (upon removal of the pin from the groove) is nowslidable longitudinally with respect to sleeve 19. Spring 50 pressingagainst the carriage 21, which contains the teeth 23, drives screw 22 tothe right (as viewed in Figure 4) until the groove 38 is engaged by thepin 35. Then the clutch 48 disengages from the clutch 44, the clutch 43engages with the clutch 47, and the lead screw 22 is rotated in thereverse direction to make the carriage 21 return until it is stopped bya buffer spring 49. During the transverse movement of the carriage 21,the suction means are inoperative.

When the carriage 21 arrives at the end of its traverse movement to theright (in Figure 4), the tapered end 4% is inserted into the hole 39 soas to lift the pin 35. At the same time, another one of the arms 29 ofthe valve 29 is operated by the push rod 32 so as to open the valve andthe suction means is actuated. At the same time, compression of spring49 occurs due to the movement of the carriage 21 thereagainst. When thepin 35 is completely removed from the groove 38 the spring 49 pressingagainst the carriage 21 causes the carriage to tend to move to the left(in Figure 4). The screw 22 is now slidable longitudinally with respectto sleeve 19. Spring 49 pressing against the carriage 21, which containsthe teeth 23, drives the screw 22 to the left (in Figure 4) until thegroove 38 is engaged by the pin 35,. Then the clutch 43 disengages fromthe clutch 47, the clutch 44 engages with the clutch 48, and lead screw22 is rotated in the reverse direction to make the carriage 21 returnuntil it is stopped by a buffer spring 50 and suction is being appliedto the carding cylinder during the traverse movement.

The traverse movement of the carriage 21 while suction is being appliedto the carding cylinder will take about 23 minutes, while the returnmotion, during which the suction means are inoperative, will take about2% minutes.

The process of stripping the doifer cylinder 71 is similar to thatdescribed with reference to the carding cylinder 12. The fibers andwaste stripped from the cylinder 12 or from the doffer cylinder 71 willpass through a pipe 31 and suction openings 69 or 70 of the fan to thevacuum fan 30 and then through a pipe 65 to an exhaust nozzle 51. Anaxle 68 of impeller 67 is rotatably mounted on the fan 30, and is drivenby a pulley 80 to create the suction and to blow the fibers through anexhaust opening 73 to a pipe 65. The fibers and waste will then be blownagainst a curved upright projection 66. The lap is fed into the cardingmachine from a lap rod driven by a lap roll 75, the axle of the lap rodbeing guided in slots 77 in plates 72. The lap is guided over the topedge of plate 66, which is curved in the direction of feed of the lap,across the feed plate 74 and under feed roll 76, over the nose of thefeed plate and to the licker-in by which it is fed onto the cardingcylinder 12. The stripped fibers blown against the projection 66 will bedistributed on the surface of the lap and will adhere thereto. and theair by means of which the fibers are carried will pass through the lapand escape into the surrounding atmosphere. A similar structure may beutilized to return the fibers to the top of the lap, the air thenescaping from beneath the lap. If desired, the fiber stripped from thedoffer 71 may be disposed of separately without being fed back to thecylinder 12.

The efficiency of the suction opening 16 is illustrated with referenceto Figure 16, in which the longitudinal axis C and transverse axis Tindicate the directions of the re tation of the cylinder 12 and thetraverse direction of the stripping means respectively. suction openingwhich is of ordinary shape, and at b is represented the opening 16according to the present invention; Assuming that a and b have equalsuction areas At a is represented a p and that suction pressure of 200mm. water column is applied through each opening, which in the diagramis shown divided into ten sections. As the cards pass the opening asuction of 200 mm. pressure will be exercised, but as the cards pass theopening b, the pressure of 200 mm. Will be applied in each of the tensections as the cylinder rotates, the pressure thus lasting ten times aslong as in case of opening a. Thus the stripping will be performed morethoroughly and eifectively by the suction opening in according to thepresent invention, than by the opening a.

Having thus described the present invention, what is claimed and desiredto be secured by Letters Patent is:

1. Stripping apparatus for a carding cylinder or a doffer cylinder incarding machines having the carding cylinder and the doffer cylindereach rotatably mounted between end brackets, comprising a hollow sleevewith a longitudinal slot therein mounted between said brackets adjacentthe cylinder, a carriage having a plurality of teeth thereon si-dablymounted on said sleeve, a valve on said carriage, a suction nozzle onsaid valve having a suction opening elongated in the circumferentialdirection of the cylinder adjacent the surface of the cylinder, a leadscrew rotatably and slidably mounted in said sleeve with the teeth onsaid carriage engaged with said lead screw, the lead screw having acircumferential groove in each end thereof, gear and clutch means onsaid lead screw adapted to drive said screw in either direction, a pushrod on each bracket adapted to engage said valve when said carriage isnext to a bracket to'operate said valve, a rod having tapered endsmounted on said carriage, each bracket having a hole therein extendingfrom said hollow sleeve, and a pin in each hole having an elongatedopening therein adapted to receive a tapered end of said rod, the endsof said pins engageable in the circumferential grooves in the ends ofsaid lead screw, whereby when said carriage reaches a point adjacent abracket, a tapered end of the said rod enters the elongated hole in thepin in said bracket to withdraw the pin from the groove in said leadscrew.

2. A stripping apparatus for carding machines having a carding cylinder,comprising in combination suction means having a suction openingelongated in the circumferential direction of the carding cylinder, theelongation being such that at least the leading ends of the fiberscollected on the carding cylinder are stripped from the carding cylinderbetween the ends of the elongated nozzle, traversing means for movingsaid suction means parallel to the axis of the cylinder, fan means forpumping air and fibers from said suction means through said fan means,and a feed plate over which the lap is passed as it is fed to thecarding cylinder, said plate having means thereon for spacing the lapfrom said plate as the lap passes thereover, said fan means dischargingair and fibers stripped from said cylinder between said plate and thelap.

3. A stripping apparatus for carding machines having a carding cylinder,comprising in combination a suction nozzle having a suction openingelongated in the circumferential direction of the cylinder, theelongation being such that the fibers collected on the carding cylinderare completely stripped from the carding cylinder between the ends ofthe elongated nozzle, traversing means for moving said suction meansparallel to the axis of said cylinder, a fan, piping from said nozzle tosaid fan through which is pumped air and fibers from said suctionnozzle, a feed plate over which the lap is passed as it is fed to thecarding cylinder, said plate having an upright projection thereon withthe top edge curved in the direction of movement of the lap for spacingthe lap from said plate as the lap passes thereover, and further pipingthrough which said fan discharges air and fibers between said plate andthe lap.

(References on following page) 5 References Cited in the file of thispatent 2,433,810 UNITED STATES PATENTS 2 221 832 1,962,945 WilkinsonJune 12, 1934 2j541j407 2,248,863 Goldsmith July 8, 1941 5 2 5 5 772,294,336 Goldsmlth Aug. 25, 1942 2,327,349 Goldsmith Aug. 24, 19432,428,255 White et a1. Sept. 30, 1947 208,016

6 Clark Dec. 30, 1947 White Mar. 15, 1949 Castell Sept. 6, 1949 ClarkFeb. 13, 1951 Hermanek Feb. 12, 1952 FOREIGN PATENTS Great Britain Dec.13, 1923

